Results 221 to 230 of about 488,344 (296)

Assembly and Properties of Donor/Acceptor–Functionalized 2,6‐Bisethynylpyridines; Investigations of Through‐Bond and Through‐Space Charge Transfer Behavior

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
Introduction of a cation to donor/acceptor‐functionalized 2,6‐bisethynylpyridines results in through‐space interaction of donor and acceptor units. The electronic effects of this organization are explored using 1H‐NMR and UV‐vis spectroscopies. ABSTRACT Introduction of Ag(I) cations to 2,6‐bisethynylpyridine units decorated with electron‐donating (N,N ...
Jarod T. Sjoquist   +8 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Thermo‐Kinetic Design of Magnesiothermic Reduction for Morphology‐Retaining Porous Si@C Anodes

open access: yesSmall, Volume 22, Issue 55, 1 October 2026.
Balancing Mg‐vapor supply and surface consumption during magnesiothermic reduction suppresses particle aggregation and preserves monodisperse morphology in porous Si@C spheres. The resulting architecture improves transport uniformity and reduces degradation within the electrode, leading to more stable high‐capacity cycling than aggregated counterparts ...
Chaeheon Woo   +11 more
wiley   +1 more source

Cu+‐Driven Formate Selectivity in Oxidation‐State‐Dependent CO2 Reduction on Cu2O|Graphene

open access: yesSmall, Volume 22, Issue 56, 8 October 2026.
A Cu2O|graphene heterostructure enables interfacial electronic self‐regulation that stabilizes catalytically active Cu+ species under cathodic CO2 reduction conditions. Suppressed over‐reduction preserves structural integrity and promotes *OCHO pathway, resulting in durable and highly selective electrochemical conversion of CO2 to formate.
Sakthivel Perumal   +9 more
wiley   +1 more source

Experimental Investigation and Fabrication of an Evacuate Tube Solar Collector

open access: yesInternational Journal of Science and Research (IJSR), 2016
openaire   +1 more source

Core–Shell Confinement Blocks Hydride Formation: The Impact of Surface Oxides on Hydrogen Sorption in Nanoporous TiFe

open access: yesSmall Structures, Volume 7, Issue 10, October 2026.
Nanoporous and ultrafine porous TiFe is prepared via high‐pressure torsion, annealing, and selective phase dissolution. Microstructural characterization, combined with hydrogen sorption, in situ X‐ray diffraction, and analytical modeling, suggests that hydride formation is blocked in nanoporous TiFe due to a confinement effect originating from the ...
Lukas Schweiger   +12 more
wiley   +1 more source

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